Bug 240200 (CVE-2007-2754) - CVE-2007-2754 freetype integer overflow
Summary: CVE-2007-2754 freetype integer overflow
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2007-2754
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 240573 240574 240575 240577 484441 484442 484443 484444 502565
Blocks:
TreeView+ depends on / blocked
 
Reported: 2007-05-15 18:57 UTC by Josh Bressers
Modified: 2019-09-29 12:20 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2007-12-19 10:37:44 UTC
Embargoed:

Attachments (Terms of Use)
Proposed upstream patch (892 bytes, patch)
2007-05-15 18:57 UTC, Josh Bressers 		no flags Details | Diff
proposed backported patch to freetype1 (753 bytes, patch)
2009-04-16 17:21 UTC, Vincent Danen 		no flags Details | Diff
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2007:0403 0 normal SHIPPED_LIVE Moderate: freetype security update 2008-01-09 15:48:23 UTC
Red Hat Product Errata RHSA-2009:0329 0 normal SHIPPED_LIVE Important: freetype security update 2009-05-22 12:21:55 UTC
Red Hat Product Errata RHSA-2009:1062 0 normal SHIPPED_LIVE Important: freetype security update 2009-05-22 12:06:25 UTC

Description Josh Bressers 2007-05-15 18:57:20 UTC 
Victor Stinner discovered an integer overflow bug in the way freetype processed
malformed TTF fonts:
http://lists.gnu.org/archive/html/freetype-devel/2007-04/msg00041.html

The patch can be found here:
http://cvs.savannah.nongnu.org/viewvc/freetype2/src/truetype/ttgload.c?root=freetype&r1=1.177&r2=1.178

It appears that this flaw will result in a heap overflow condition:

    flag_limit = flag + n_points;
...
    while ( flag < flag_limit )
    {
...
      *flag++ = c = FT_NEXT_BYTE( p );
Comment 1 Josh Bressers 2007-05-15 18:57:20 UTC 
Created attachment 154762 [details]
Proposed upstream patch
Comment 3 Tomas Hoger 2007-12-19 10:37:44 UTC 
Problem was fixed in affected Red Hat Enterprise Linux:

  http://rhn.redhat.com/errata/RHSA-2007-0403.html

and Fedora versions.
Comment 5 Vincent Danen 2009-04-16 17:21:25 UTC 
Created attachment 339881 [details]
proposed backported patch to freetype1
Comment 6 errata-xmlrpc 2009-05-22 12:06:35 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 2.1

Via RHSA-2009:1062 https://rhn.redhat.com/errata/RHSA-2009-1062.html
Comment 7 errata-xmlrpc 2009-05-22 12:22:25 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 3
  Red Hat Enterprise Linux 4

Via RHSA-2009:0329 https://rhn.redhat.com/errata/RHSA-2009-0329.html
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